• Title, Summary, Keyword: sanitary landfill

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Analysis of Soil Contamination with Depth in Non-sanitary Closed Waste Landfill (비위생 사용종료매립장의 심도별 토양오염도 분석)

  • Oh, Young-In;Kim, Kwan-Ho;Lee, Dong-Geon;Cho, Sook-Hee;Bak, Eun-Suk
    • Proceedings of the Korean Geotechical Society Conference
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    • pp.1217-1224
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    • 2010
  • These days, the maintenance of closed waste landfill come to the fore social problem such as legal maintenance period, after closed maintenance deposits, stability evaluation guides and environmental survey for closed landfill management. Therefore the many non-sanitary closed waste landfill has been removed by selection and transfer to sanitary landfill and incineration. When the remove the non-sanitary landfill, the pollution level of bottom soil was investigated by related government law. In this case study, the soil contamination survey was performed to evaluate the pollution level of non-sanitary closed landfill bottom soil. Based on this study, the pollution level of studied non-sanitary landfill bottom soil was content with related government law for third area(factory, parking lot, gas station, road, railroad use etc.).

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A Study on Numerical Calculation of Gas Migration from the Sanitary Landfill (쓰레기 매립지에서 가스유출 계산에 관한 연구)

  • 이해승
    • Journal of environmental and Sanitary engineering
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    • v.13 no.3
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    • pp.43-51
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    • 1998
  • This study presents a numerical method for calculating gas flow around a sanitary landfill gas vent, when gas flows by pressure. The method described is a three-dimensional compartmental model and includes methods to determine the dimensions for the model. Using the numerical method, controll of press and gases flowing out to the air through final cover soil, and degine of sanitary landfill gas vents.

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Looking back on Waste Land Fill (쓰레기 매립처분의 재검토)

  • Kim Kyong Ho
    • Journal of environmental and Sanitary engineering
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    • v.3 no.2
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    • pp.79-90
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    • 1988
  • Untill to-day the disposal of municipal refuse in Korea is entirely depending on dumping the refuse into concave land except a few case that bring about the secondary pollution by generating insects, offensive odour and the dust blow which cause adverse effects to dwelling community in the vicinity. It is widely recognized since Korea is ready to be advanced nation must be carried out the proper way of refuse disposal as meet with the environmental standard and ready to accept by general public. Refuse disposal that is practiced by world wide is known as sanitary landfill although it bears some what the expensive construction and operation costs rather than the plain dumping. The following statement is the construction of sanitary landfill in brief. When one takes a look at the Unites States which has huge territory normaly carry out the refuse disposal by anaerobic improved landfill method while the country has limitted land is experimenting various types of landfill which bring about the earier reuse of completed landfill site and minimise the secondary pollution. The author of this article consider out of several landfill methods the semi aerobic landfill will be widely applied in Korea in coming day, the following article will elaborate little more about the semi aerobic method.

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Minimizing the Measurement Error from Gas Compositions of Gas Vent in Sanitary Landfill (쓰레기 매립지 가스 포집관에서 가스조성에 따른 계측오차의 최소화)

  • 이해승;이문형
    • Journal of environmental and Sanitary engineering
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    • v.17 no.1
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    • pp.28-35
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    • 2002
  • A methods of minimizing the measurement error brought from gas compositions was proposed by Hot wire Anemometer which don't have measurement resistance to calculate of gas vent in sanitary landfill. It was determined measurement error to compared velocity at the center of pipe to calculate using rotor meter and density gas compositions with velocity at the center of pipe to calculate using water head indicator which don't have measurement resistance. Considering the methods of minimizing gas velocity in sanitary landfill using hot wire anemometer and rotor meter, it was found to minimize within 10% as error of gas vent in sanitary landfill.

A Study on the Aged Landfill Leachate Treatment with Electrolysis (전기분해공법을 이용한 고령화된 매립장 침출수 처리에 관한 연구)

  • Chung Soon-Hyung;Lee Young-Sei;Choi Hyun-Kuk;Choi Joon-Ho
    • Journal of environmental and Sanitary engineering
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    • v.20 no.1
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    • pp.32-39
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    • 2005
  • Recently, sanitary landfill was one of the most widely used for disposal of waste in Korea. With increasing of use and public awareness of this method for disposal. there is an increased concern with respect to the pollution potential by the landfill leachate. Especially, an aged landfill leachate contained relatively large amount of the nonbiodegradable substances which could not be removed by biological treatment processes. So, this study was conducted to the removal of nonbiodegradable substances, such as Humic acid and Fulvic acid with the electrolysis. In this study, electrode materials, electrolyte concentration, electrode distance, current density, and pH value were found to have significant effect on both pollutant removal efficiency and current efficiency in electrochemical oxidation process.

A study on Properties of Gas Generated at Closed Landfill Site (사용종료 매립지의 발생가스 특성분석에 관한 연구(I))

  • 장성호;손영일
    • Journal of environmental and Sanitary engineering
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    • v.16 no.2
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    • pp.17-23
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    • 2001
  • The objective of this study was to investigate the component ratio of gas generated at closed GD landfill site in MY city and the decomposition status of landfill gas, and was to examine and analyze the properties of the landfill gas. In addition, to provide basic data required to stabilize landfill earlier in the future, the study was to measure gas by landfill gas gauge and to analyze the properties of landfill gas based on documents. As a result of analyzing the properties, acquired follow results. 1. The main elements of landfill gas, $CH_4$ and $CO_2$ were respectively 25.02% and 22.325 on the average. 2. $NH_3$ and $H_2S$ were respectively 1.07 4.97 and 0.75 1.15 on the average. 3. Generated gas was different depending on water, pH properties of MSW(Munticipal Solid Wastes) and their decomposition rate. Furthermore, when measured the temperature of room to inspect landfill gas, the temperature was $22{\;}-{\;}30^{\circ}C$ in the average.

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A comparative study on efficiency in the sulfate -added anaerobic landfill site and the semi-aerobic landfill site for the inhibition of methane genration from a landfill site (매립지의 메탄 발생억제를 위한 황산염 첨가형매립지 및 준호기성 매립지의 효율 비교에 대한 연구)

  • 김정권;김부길
    • Journal of Environmental Science International
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    • v.8 no.3
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    • pp.325-330
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    • 1999
  • This study aims to observe the inhibition of methane generation, the decomposition of organic matter, and the trend of outflowing leachate, using the simulated column of the anaerobic sanitary landfill structure of sulfate addition type which is made by adding sulfate to a current anaerobic landfill structure, and the simulated column of semi-aerobic landfill structure in the laboratory which is used in the country like Japan in order to inhibit methane from a landfill site among the gases caused by a global warming these days, and at the same time to promote the decomposition of organic matter, the index of stabilization of landfill site. As a result of this study, it is thought that the ORP(Oxidation Reduction Potential) of the column of semi-aerobic landfill structure gradually represents a weak aerobic condition as time goes by, and that the inside of landfill site is likely to by in progress into anaerobic condition, unless air effectively comes into a semi-aerobic landfill structure in reality as time goes by. In addition, it can be seen that the decomposition of organic matter is promoted according to sulfate reduction in case of $R_1$, a sulfate-added anaerobic sanitary landfill structure, and that the stable decomposition of organic matter in $R_1$ makes a faster progess than $R_2$. Moreover it can be estimated that $R_1$, a sulfate-added anaerobic sanitary landfill structure has an inhibition efficiency of 55% or so, compared with $R_2$, a semi-aerobic landfill structure, in the efficiency of inhibiting methane.

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Effects of Macrophytes on Biological Treatment of Processed-Leachate from Sanitary Landfill Sites

  • Kim, In-Sung;Choi, Hong-Keun;Lee, Eun-Ju
    • Journal of Ecology and Environment
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    • v.29 no.1
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    • pp.29-34
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    • 2006
  • Three macrophytes species, that are, Phragmites australis, Zizania latifolia and Typha angustifolia were grown in mono culture in order to compare growth (relative biomass increase rate), variation of photosynthetic pigment (total chlorophyll, Chl a, Chl b and Chl a/Chl b) and effectiveness of nutriment removal in 15%o NaCl-salt solution or processed-leachate (salinity 19.6%o) from sanitary landfill sites. The relative biomass increase rate of p. australis was significantly higher than Z. latifolia and T. angustifolia. In the case of processed-leachate treatment, the relative biomass increase rates of above-part, rhizome and root of P. australiswere 178 %, 148 % and 157 %, respectively. Also, in 15%o NaCl-salt solution treatment, the relative biomass increase rates of P. australis increased as follows; 161 % (above-part), 183 % (rhizome) and 112 % (root). Total chlorophyll contents increased significantly in the leaves of P. australis and Z. latifolia grown in 15%o NaCl-salt solution and processed-leachate. Among three macrophytes, P. australis was evaluated as most effective macrophyte for the biological retreatment of processed-leachate from sanitary landfill sites.

Rehabilitation Method and Case of Closed Waste Landfill (사용종료매립지 정비방법 및 정비사례 분석)

  • 정하익
    • Proceedings of the Korean Geotechical Society Conference
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    • pp.85-95
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    • 2001
  • There has been a steady increase in closed waste landfill. Sanitary and contamination prevention systems such as liner system, leachate treatment, gas treatment system were not installed in unregulated waste landfill. This study was carried out to introduce the rehabilitation method and case of unregulated closed landfill.

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